| Name | OT1_pappleto_1 |
| Title | Charting the Cooling Pathways in High-Speed Extragalactic Shocks |
| URL | http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342213131&instrument_name=PACS&product_level=LEVEL0&compress=true |
| DOI | https://doi.org/10.5270/esa-ljevttj |
| Author | appleton, p. |
| Description | Following in the footsteps of ISO, recent observations with Spitzerhave revealed a population of galaxy systems which emit a huge amountof luminosity in their pure rotational mid-IR molecular hydrogenlines, in some cases reaching 10-30 percent of the bolometricluminosity. These large line-luminosities are believed to be poweredby galactic-scale shocks, which efficiently transfer kinetic energy tosmaller dense clouds in the turbulent post-shock medium. However,nothing at all is known about the other important cooling channels forthe shocked gas, such as OI, H2O, OH, and CO, some of which canrival H2 as a coolant. We propose deep PACS and SPIRE spectroscopy ofthe Giant Shock in Stephans Quintet and the Taffy Galaxy bridge toquantify the most important cooling channels and determine thephysical state of the gas being shocked. The results have implicationsfor understanding the importance of molecular cooling at higherredshift where turbulence and shock-heating may play a role in galaxyformation. |
| Publication |
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| Instrument | SPIRE_SpireSpectrometer_, PACS_PacsRangeSpec_point, PACS_PacsRangeSpec_large |
| Temporal Coverage | 2011-01-20T11:51:54Z/2012-06-12T06:45:58Z |
| Version | SPG v14.2.0 |
| Mission Description | Herschel was launched on 14 May 2009! It is the fourth cornerstone mission in the ESA science programme. With a 3.5 m Cassegrain telescope it is the largest space telescope ever launched. It is performing photometry and spectroscopy in approximately the 55-671 µm range, bridging the gap between earlier infrared space missions and groundbased facilities. |
| Creator Contact | https://support.cosmos.esa.int/h®erschel/ |
| Date Published | 2012-12-12T02:56:46Z |
| Last Update | 2026-03-02 |
| Keywords | Herschel Space Observatory data, ESA Herschel mission dataset, far-infrared astronomy observations, submillimeter astronomy data, infrared space telescope observations, PACS photometer data, PACS spectrometer data, SPIRE photometer data, SPIRE Fourier transform spectrometer data, HIFI heterodyne spectroscopy data, far-infrared spectroscopy dataset, submillimeter spectral line observations, cold universe observations dataset, star formation infrared data, molecular cloud far-infrared observations, interstellar medium spectroscopy data, protoplanetary disk infrared observations, galaxy evolution far-infrared data, dust emission submillimeter observations, cosmic infrared background measurements, extragalactic infrared survey data, calibrated level 2 data products, FITS files astronomy, spectral cubes far-infrared, flux-calibrated maps, continuum photometry data, spectral energy distribution measurements, ESA Herschel Science Archive data |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, appleton et al., 2012, 'Charting the Cooling Pathways in High-Speed Extragalactic Shocks', SPG v14.2.0, European Space Agency, https://doi.org/10.5270/esa-ljevttj |